70 #define CHECK_MBUF_RELEASED(mbuf) \  argument
71     if (((_PyManagedBufferObject *)mbuf)->flags&_Py_MANAGED_BUFFER_RELEASED) { \
81     _PyManagedBufferObject *mbuf;  in mbuf_alloc()  local
83     mbuf = (_PyManagedBufferObject *)  in mbuf_alloc()
85     if (mbuf == NULL)  in mbuf_alloc()
87     mbuf->flags = 0;  in mbuf_alloc()
88     mbuf->exports = 0;  in mbuf_alloc()
89     mbuf->master.obj = NULL;  in mbuf_alloc()
90     _PyObject_GC_TRACK(mbuf);  in mbuf_alloc()
92     return mbuf;  in mbuf_alloc()
98     _PyManagedBufferObject *mbuf;  in _PyManagedBuffer_FromObject()  local
100     mbuf = mbuf_alloc();  in _PyManagedBuffer_FromObject()
101     if (mbuf == NULL)  in _PyManagedBuffer_FromObject()
104     if (PyObject_GetBuffer(base, &mbuf->master, PyBUF_FULL_RO) < 0) {  in _PyManagedBuffer_FromObject()
105         mbuf->master.obj = NULL;  in _PyManagedBuffer_FromObject()
106         Py_DECREF(mbuf);  in _PyManagedBuffer_FromObject()
110     return (PyObject *)mbuf;  in _PyManagedBuffer_FromObject()
188      ((PyMemoryViewObject *)mv)->mbuf->flags&_Py_MANAGED_BUFFER_RELEASED)
645     mv->mbuf = NULL;  in memory_alloc()
668 mbuf_add_view(_PyManagedBufferObject *mbuf, const Py_buffer *src)  in mbuf_add_view()  argument
674         src = &mbuf->master;  in mbuf_add_view()
693     mv->mbuf = mbuf;  in mbuf_add_view()
694     Py_INCREF(mbuf);  in mbuf_add_view()
695     mbuf->exports++;  in mbuf_add_view()
706 mbuf_add_incomplete_view(_PyManagedBufferObject *mbuf, const Py_buffer *src,  in mbuf_add_incomplete_view()  argument
713         src = &mbuf->master;  in mbuf_add_incomplete_view()
724     mv->mbuf = mbuf;  in mbuf_add_incomplete_view()
725     Py_INCREF(mbuf);  in mbuf_add_incomplete_view()
726     mbuf->exports++;  in mbuf_add_incomplete_view()
737     _PyManagedBufferObject *mbuf;  in PyMemoryView_FromMemory()  local
744     mbuf = mbuf_alloc();  in PyMemoryView_FromMemory()
745     if (mbuf == NULL)  in PyMemoryView_FromMemory()
749     (void)PyBuffer_FillInfo(&mbuf->master, NULL, mem, size, readonly,  in PyMemoryView_FromMemory()
752     mv = mbuf_add_view(mbuf, NULL);  in PyMemoryView_FromMemory()
753     Py_DECREF(mbuf);  in PyMemoryView_FromMemory()
766     _PyManagedBufferObject *mbuf;  in PyMemoryView_FromBuffer()  local
775     mbuf = mbuf_alloc();  in PyMemoryView_FromBuffer()
776     if (mbuf == NULL)  in PyMemoryView_FromBuffer()
781     mbuf->master = *info;  in PyMemoryView_FromBuffer()
782     mbuf->master.obj = NULL;  in PyMemoryView_FromBuffer()
784     mv = mbuf_add_view(mbuf, NULL);  in PyMemoryView_FromBuffer()
785     Py_DECREF(mbuf);  in PyMemoryView_FromBuffer()
796     _PyManagedBufferObject *mbuf;  in PyMemoryView_FromObject()  local
801         return mbuf_add_view(mv->mbuf, &mv->view);  in PyMemoryView_FromObject()
805         mbuf = (_PyManagedBufferObject *)_PyManagedBuffer_FromObject(v);  in PyMemoryView_FromObject()
806         if (mbuf == NULL)  in PyMemoryView_FromObject()
808         ret = mbuf_add_view(mbuf, NULL);  in PyMemoryView_FromObject()
809         Py_DECREF(mbuf);  in PyMemoryView_FromObject()
821 mbuf_copy_format(_PyManagedBufferObject *mbuf, const char *fmt)  in mbuf_copy_format()  argument
829         mbuf->master.format = strcpy(cp, fmt);  in mbuf_copy_format()
830         mbuf->flags |= _Py_MANAGED_BUFFER_FREE_FORMAT;  in mbuf_copy_format()
851     _PyManagedBufferObject *mbuf;  in memory_from_contiguous_copy()  local
864     mbuf = (_PyManagedBufferObject *)_PyManagedBuffer_FromObject(bytes);  in memory_from_contiguous_copy()
866     if (mbuf == NULL)  in memory_from_contiguous_copy()
869     if (mbuf_copy_format(mbuf, src->format) < 0) {  in memory_from_contiguous_copy()
870         Py_DECREF(mbuf);  in memory_from_contiguous_copy()
874     mv = (PyMemoryViewObject *)mbuf_add_incomplete_view(mbuf, NULL, src->ndim);  in memory_from_contiguous_copy()
875     Py_DECREF(mbuf);  in memory_from_contiguous_copy()
1048         assert(self->mbuf->exports > 0);  in _memory_release()
1049         if (--self->mbuf->exports == 0)  in _memory_release()
1050             mbuf_release(self->mbuf);  in _memory_release()
1079     Py_CLEAR(self->mbuf);  in memory_dealloc()
1088     Py_VISIT(self->mbuf);  in memory_traverse()
1096     Py_CLEAR(self->mbuf);  in memory_clear()
1402         mbuf_add_incomplete_view(self->mbuf, &self->view, ndim==0 ? 1 : (int)ndim);  in memory_cast()
1425     self = (PyMemoryViewObject *) mbuf_add_view(self->mbuf, &self->view);  in memory_toreadonly()
2472         sliced = (PyMemoryViewObject *)mbuf_add_view(self->mbuf, view);  in memory_subscript()